yes, "proposed"... I know that. I'm not particularly worried, like so many seem to be, but then, I reckon that those who are worried might be wealthier expats/Pensioners. My point in responding to the other comment Erwin the link, was that Thailand was looking at possibly taxing income earned worldwide, not just in Thailand. As you said it's only a proposal right now
I'd you don't mind me asking, have you been in Thailand for a decent amount of time, or at least had A Thai Bank Account for many months or even years? I'm wondering if you've entered the country just after you've had a Non-O Visa approved and only have 3 months before doing an extension application, how can you provide 6 months of bank transactions? Maybe